A Green and Energy‐Supply‒Free Artificial Plant for Efficient and Non‐Selective Enrichment of Heavy Metal Ions Out of Soil
Congcan Shi, Yike Li, Zhenhua Wu, Aotian Chen, Qing-Wei Wang, Xinyue Li, Honghao Jin, Chunze Yan, Yusheng Shi, Yusheng Shi, Yan Shi, Yan Shi, Zhang Lin, Bin Su
Abstract
Abstract Removing heavy metal (loid) s (HMs) from contaminated soil in a nonselective, highly efficient, and energy‐free manner is a major global challenge. Herein, this work synthesizes and assembles a biomimetic materials system (BMS) consisting of an artificial plant, a hemispherical glass cover, and a reflective plate, capable of non‐selective and highly efficient remediation of soil contaminated by various HM ions under sunlight. Specifically, a water cycle is driven to establish between the soil, artificial plant, and atmosphere by solar energy in the BMS, which induced water‐soluble HM ions to enrich and precipitate at the top edge of the artificial plant. The formed HM precipitate is easily removed, contributing to the extremely strong recyclability of BMS. This system has significant advantages in terms of soil properties, contamination characteristics, energy consumption, processing time, and removal amount over other representative remediation methods, demonstrating its great potential for practical application in the remediation of various HM‐contaminated soils.